/Engine/Source/Runtime/Experimental/Iris/Core/Public/Iris/ReplicationState/PropertyNetSerializerInfoRegistry.h
Custom replication fragments are currently only supported by structs with a custom NetSerializer. See UE_NET_IMPLEMENT_NAMED_STRUCT_NETSERIALIZER_WITH_CUSTOM_FRAGMENT_INFO.
virtual [CreateAndRegisterReplicationFragmentFunc](API\Runtime\IrisCore\Iris\ReplicationState\CreateAndRegiste-) GetCreateAndRegisterReplicationFragmentFunction() const